Switching system



Jan. 1, 1946. R. E. HERSEY SWITCHING SYSTEM 20 Sheets-Sheet 2 Filed June 23, 1944 J m 558.8 m 4 n 538i INVENTOR R. .5 HE RSE V ATTORNEY E. HERSEY 2,392,089

20 Sheets-Sheet s SWITCHING SYSTEM Filed June 23-, 1944 Jan. 1, 1946.

I this 2 lNl/E/VTOR R. 5 HERSEV A 7' TORNEV 1, 5- .R. E. HERSEY 2,392,089

' swrwcame SYSTEM Filed June 2:5, 1944 20 Sheets-Sheet 4 FIG. 7

DISTRICT PRIMARY Fl? 9 F- ems come-c150 D/J'TRICT PRIMARY INT FR CROSS CONNECTED m/ve/vron R. E. HERSEV Jan. 1, 1946. R. E. HERSEY 2,392,089

' SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 5 FIG. 8

INVENTOR R. E HERSEV A TTQ ZNEV Jan. 1, 1946.

R. E. HERSEY 2,392,089

SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 6 0 INT 9 IN T lNVEA/TOR Jan. I, 1946. Y R. E, HERSEY 2,392,089

SWITCHING SYSTEM Filed June 23, 1944 20 She ets-Sheet 7 V l 1 CROSS CONNECT 70 RUNK COMM as REG.

TRUNK CONN. 45 R50.

IN T

CROSS CONNECT 7'0 TRUNK CONN. A5 RE'O.

I I -CRO$$' CONNECT TO TRUNK CONN 44S REG.

--CROJ'S CONNECTED ;L 1 mos: co/wvEcr m TRUNK CONN- .45 R50 CROSS CONNECT T0 TRUNK CONN. 45 R59.

INVENTOR- R. E. HERSEV ATTORNFV Jan. 1, 1946. R, HERsEY 2,392,089

SWITCHING SYSTEM Filed June 25, 1944 2o Sheets-Sheet a DISTRICT PRIMARY FR 0 PART OF I DISTRICT 22 JUNE TOR I126 5 II A TTORNE Y Jan. I, 1946. R. E. HERSEY SWITCHING SYSTEM Filed June 25, 1944' 20 Sheets-Sheet 9 Y m 0 w n S T m T u D FRO V GROUP RELA VS Jan. 1, 1946. R. E. HERSEY SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 10 OFFICE PRIMARY FRO INVENTOR R E HERSEV A TTORNEY Jan. 1, 1946. R. E. HERSEY SWITCHING SYSTEM Filed June 23, 1944 20 Shepts-Sheet 11 FIG. /4

OFF/CE SECONDARY FR. 0

l CROSS CONNECT T0 TRUNK CONN. 145' R50.

CROSS CONNECT T0 TRUNK CONN. AS REQ.

CHANNEL RELAYS lNl E R E HERSEV ATTORNEY R. E. HERSEY SWITCHING SYSTEM Jan. 1, 1946.

Filed June 23, 1944 '20 Sheets-Sheet l2 }TO OTHER .SENDER LINK CONTROL CCTJI III-II INVENTOR A TTORNF V Jan. 1, 1946.

FIG. /6

R. E. HERSEY 2,392,089

SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 13 COMM 0 OFF I C E T TRUNK CON/I.

ATTORNEY 9 1946. R. E. HERSEY 2,392,089

SWITCHING SYSTEM Filed June 23, 1944 2o Sheets-Sheet 14 GROUP 2 CROSS CONN T0 OFF/CE SEC. SWITCHES AS REQ- TRUNK CONN- INVENTOR R. E HERSE) ATTORNEY 1946. R. E. HERSEY 2,392,089

SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 15 TRUNK CONN.

' uwe/vron REHERSEV ATTORNEY Jan. 1, 1946. R. E. HERSE Y 2,392,089

' SWITCHING SYSTEM Filed June, 23, 1944 '20 Sheets-Sheet 16 FIG. /9

DISTRICT PREFERENCE:

J l, 1946. R. E. HERSEY 2,392,039

SWITGHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 17 FIG. 20

ROUTE RELAYS 05 CODE R 3 0E CODE R 2 H DECODER I film/w 7 E1 77 H 9FF/cE PREEERENCE lNl/ENTOR R. E. HERSEY V'I/I A TTORNE Y Jan. 1, 1945. R. E. HERSEY 2,392,089

' 2o Sheets-Sheet 18 Filed June 23, 1944 QIINVEIYVTOR R. E HERSEV A TTORNEY j L 1946. R. E. HERSEY 2,392,639 SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 19 FIG. 22

INVfNTOR R. E. HERSEY R. E. HERSEY 2,392,08

SWITCHING SYSTEM Filed June 23, 1944 20 Sheets-Sheet 2O INVENTOR R. E HERSEY g: f 1 1- Y1 I A TTORNEY 

